1. Bluetooth version: V5.3+EDR
2. Battery capacity: 40mAh for earphones, 360mAh for charging case
3. Transmission frequency: 24Ghz
4. Supported protocols: HSP/HFP/A2DP (SBC, AAC/AVRCP)
5. Receiving distance: 15m
6. Charging time: 45 minutes for earphones, 120 minutes for charging case
7. Working temperature: -10 degrees Celsius to 50 degrees Celsius
8. 13mm large dynamic coil, feel HiFi sound quality
9. Lightweight and comfortable to wear
10. High-precision touch panel, fingerprint touch operation